What is the CVSS score of CVE-2025-53899?

CVE-2025-53899 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Kiteworks Managed File Transfer are affected by CVE-2025-53899?

CVE-2025-53899 presents moderate security risk rated CVSS 7.2. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-53899?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.

Kiteworks Managed File Transfer CVE-2025-53899

HIGH

Incorrectly Specified Destination in a Communication Channel (CWE-941)

2025-11-29 security-advisories@github.com

Privilege Escalation Kiteworks Managed File Transfer

7.2

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.2 HIGH

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:24 vuln.today

Patch released

Mar 28, 2026 - 19:24 nvd

Patch available

CVE Published

Nov 29, 2025 - 03:15 nvd

HIGH 7.2

DescriptionGitHub Advisory

Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT is vulnerable to an incorrectly specified destination in a communication channel which allows an attacker with administrative privileges on the system under certain circumstances to intercept upstream communication which could lead to an escalation of privileges. This issue has been patched in version 9.1.0.

AnalysisAI

Kiteworks MFT orchestrates end-to-end file transfer workflows. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-941. Kiteworks MFT orchestrates end-to-end file transfer workflows. Prior to version 9.1.0, the back-end of Kiteworks MFT is vulnerable to an incorrectly specified destination in a communication channel which allows an attacker with administrative privileges on the system under certain circumstances to intercept upstream communication which could lead to an escalation of privileges. This issue has been patched in version 9.1.0. Affected products include: Accellion Kiteworks Managed File Transfer. Version information: version 9.1.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.